JP2502797Y2 - Animal model for animal experiment training - Google Patents

Description

[Detailed description of the device]

[0001]

[Field of Industrial Application] When various animal experiments are conducted on small animals such as mice, rats and guinea pigs, it is important to properly handle the small animals and perform various operations. The present invention relates to an animal model used for training the technique of this animal experiment.

[0002]

2. Description of the Related Art Small animals such as mice and rats are often used for animal experiments. In this animal experiment, various operations such as restraint, oral administration of a sample, intubation of the trachea, administration of a tail vein of a sample, and blood collection from a tail vein (artery) are often performed. Further, it is difficult to perform these operations accurately without damaging the animal, and therefore, it is necessary to repeat training and master the technique.

However, these manipulation techniques are referred to as animal experiment techniques, and the training has heretofore been carried out using actually living animals as teaching materials. However, in recent years, from the viewpoint of the dignity of the life of animals, it has become a problem to use live animals for the above training.

[0004]

DISCLOSURE OF THE INVENTION An object of the present invention is to provide an animal model used as a teaching material for training animal experimentation techniques. In animal experiment procedures, it is necessary to hold the animal with hands or instruments to facilitate treatment during various operations, that is, to perform retention, and whether or not various operations can be performed accurately and smoothly depends on this retention. ing. For restraint training, the animal model has a feeling similar to that of a living animal when held and held by hand, and further when held by an instrument,
The purpose cannot be achieved unless the posture is taken. Further, in the training of various operations, the results of the training cannot be achieved unless it is possible to know whether or not the various operations performed on the animal model have been properly performed.

The present invention provides a retention,
An object of the present invention is to provide an animal model for animal experiment technique training suitable for training of an oral administration method, a tracheal intubation method, a tail vein administration method, and a tail vein (arterial) blood sampling method.

[0006]

[Means for Solving the Problems] That is, the present invention is made by molding a hollow animal model with a soft synthetic resin and enclosing a gel body inside the hollow animal model. It has a stomach model, and the chest and abdomen of the animal model are related to the animal model for animal experiment training, which is made of a transparent soft synthetic resin, and the hollow animal model is molded with the soft synthetic resin, and the inside thereof is formed. A gel body is enclosed in the body of the animal model. The tail of the animal model covers a flexible string-like material with an outer skin of a soft synthetic resin, and a hollow thin tube is bent into a U shape between the string-like material and the outer skin. The present invention relates to an animal model for animal experiment technique training, which has an inserted structure and has both ends of the hollow thin tube exposed to the outside from the root of the tail. Furthermore, the hollow animal model described above is related to an animal model for animal experiment training, which is formed by two soft synthetic resin films adhered only at the mouth.

The present invention will be described in detail with reference to FIG. 1 showing an example of the present invention. A soft synthetic resin 1 forms a hollow animal model and corresponds to the skin of an animal. A gel body is enclosed inside the hollow animal model to form an animal model body M. An animal having the feel of various small animals such as mice, rats, guinea pigs and hamsters by adjusting the flexibility and thickness of the soft synthetic resin 1 corresponding to this skin, and the viscosity and filling degree of the gel body encapsulated inside. You can get the model body. Further, if a soft synthetic resin 1'is provided inside the soft synthetic resin 1 and the portion corresponding to the skin of the animal has a double structure, a feeling similar to that of an actual animal can be obtained. It is preferable that this animal model body is formed in a posture that a small animal normally takes. And since this animal model body is configured as described above, the feeling of grasping this is almost the same as that of a living animal, and the posture of the animal can be freely changed, so when performing various operations. It is extremely suitable for restraint training.

As the above-mentioned soft synthetic resin, silicone,
Polyvinyl chloride-based synthetic resin, polyolefin-based synthetic resin, gen-based elastic synthetic resin, etc. are used, and as a gel, silicone gel, polyacrylic acid, alginic acid, carboxymethyl cellulose or so-called high water absorption A gelled material such as a resin is used, and this gel body is preferably transparent. In addition, it is preferable that the outer surface of the soft synthetic resin corresponding to the skin of an animal is wrinkled or short fibers are transplanted to imitate the appearance of the animal.

Next, in FIG. 1, 3 is the mouth of the animal model,
Reference numeral 4 is a model of the trachea, 5 is a model of the esophagus, and 6 is a model of the stomach. Further, 7 is a drain for draining the liquid, which is provided if desired. The trachea 4 and the esophagus 5 are connected to the mouth 3. One end of the drain 7 is connected to the stomach model 6 and the other end is exposed to the outside of the animal model body M. The skin part 2 of the chest and abdomen of the animal model body M is made of a transparent material so that the model 4 of the trachea, the model 5 of the esophagus and the model 6 of the stomach can be seen from the outside. This configuration is for improving the efficiency of oral administration and tracheal intubation training.

For example, in the oral administration method in animal experiments, in the case of mice, the length is 6 to 8 cm and the diameter is 0.9 to 1.
Attach an oral probe with a mm-shaped tube with a spherical tip to the syringe barrel, insert the tip of this oral probe into the animal's mouth and insert it into the stomach, and administer the sample in the syringe barrel into the animal's stomach. To do. This oral probe must be inserted into the stomach without damaging the esophagus or stomach. The training is to acquire the technique to insert the oral probe into the stomach accurately without damaging the esophagus or stomach. The same applies to tracheal intubation.

When the animal model of the present invention is used for training, the model of the trachea 4, the model of the esophagus 5 and the model of the stomach 6 can be seen from the outside, and it is visually confirmed whether or not the oral probe is properly inserted. It can be inserted while being repeated, and by repeating this, the skill can be mastered. When the liquid is actually administered to the stomach for training, the liquid is drained to the outside of the animal model body M through the drain. Model of trachea 4, model of esophagus 5 and model of stomach 6 and drain 7
Is made of the soft synthetic resin described above. Also, for example, the model 4 of the trachea is white, the model of the esophagus 5 and the model of the stomach 6
The training efficiency can be further improved by coloring so as to be red.

Further, in FIG. 1, reference numeral 8 is a tail model of the animal model body M. 9 is a flexible solid cord-shaped body, 10
Is an outer skin made of soft synthetic resin, and 11 is a hollow thin tube.
This tail model 8 has a flexible solid string 9 as a core,
The outer skin 10 made of soft synthetic resin is covered on it in a sheath shape,
A hollow thin tube 11 is bent and inserted into a U-shape between the cord-like body 9 and the outer skin 10 to be inserted. It is preferable to insert the U-shaped bent tip to the tip of the tail as much as possible. Both ends of the hollow thin tube 11 are exposed to the outside of the animal model body M from the base of the tail. The cord-like body 9, the outer cover 10, and the hollow thin tube 11 are appropriately made of the above-mentioned soft synthetic resin as a material. The surface of the outer skin may be provided with a peculiar skin pattern such as rat. This tail model 8
The part has a feeling similar to that of an animal's tail and is used for training of tail vein administration technique and tail vein (arterial) blood sampling technique.

In animal experiments, tail vein administration and tail vein (arterial) blood sampling are often performed. According to this method, after retaining an animal using a retainer or the like, an injection needle is inserted into its tail vein to inject a sample, or blood is collected by inserting an injection needle into a tail vein or artery. However, because the tail of a small animal is small and has a special shape, and its blood vessel is thin, it is difficult to insert the injection needle accurately without damaging the tail vein or tail artery, and it requires skillful technique. .

The model part of the tail of the animal model for animal experiment training according to the present invention is used for training the insertion of the injection needle into the vein or artery. That is, the animal model body M is held by using a restraint device or the like, the tail model 8 is extended, the hollow thin tube corresponding to the tail vein or the tail artery is searched for by hand, and the injection needle is inserted into this hollow thin tube. In the case of training of sample administration, when the injection needle is properly inserted, the administered liquid passes through the hollow thin tube and flows out from both ends of the hollow thin tube exposed to the outside of the animal model body M. Therefore, it is possible to visually confirm whether or not the injection needle is properly inserted. Further, in the case of blood collection training, if both ends of the hollow thin tube exposed outside the animal model body M are inserted into the liquid, the liquid will enter the syringe when the injection needle is properly inserted. Since it is sucked up, it can be visually confirmed whether or not the insertion of the injection needle is properly performed. Then, by repeating this operation, the injection needle insertion technique can be mastered.

The animal model for animal experiment training of the present invention may include both the model of the trachea, the model of the esophagus, the model of the stomach and the model of the tail described above.

[0016]

EFFECTS OF THE INVENTION The animal model for animal experiment training according to the present invention has a hand-holding feeling similar to that of an animal, and can take various postures. Further, it is suitable for the training of the oral administration method, the training of the tail vein administration method, and the training of the tail vein (artery) blood sampling method. Therefore, by using the animal model of the present invention for training animal experiment techniques, it is not necessary to use living animals as teaching materials,
The present invention is significant in that it can be easily trained and that it does not cause death or damage to animals.

[Brief description of drawings]

FIG. 1 is a front view of the animal model for animal experiment training of the present invention seen from the abdomen.

[Explanation of symbols]

M animal model body, 1,1 'soft synthetic resin, 2 transparent part, 3 mouth part, 4 tracheal model, 5 esophageal model, 6
Stomach model, 7 drainage drain, 8 tail model, 9
String, 10 outer skin, 11 hollow thin tube

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Hiro Uno 3-5-18 Shimochiai, Shinjuku-ku, Tokyo Kokennai, a stock company (56) References JP-A-60-121484 (JP, A) 50-37650 (JP, U) Actually opened 51-149252 (JP, U)

Claims (3)

(57) [Scope of utility model registration request] 1. A hollow animal model is molded from a soft synthetic resin,
An animal experiment technique in which a gel body is enclosed, and which has a model of the trachea and esophagus and stomach connected to the mouth of the animal model, and the chest and abdomen of the animal model are made of a transparent soft synthetic resin. Animal model for training. 2. A hollow animal model is molded from a soft synthetic resin,
A gel body is enclosed in the interior of the animal model, and the tail of the animal model covers a flexible string-like material with an outer skin of a soft synthetic resin, and a hollow thin tube is formed in a U shape between the string-like material and the outer skin. An animal model for animal experiment training, which has a structure that is bent and inserted and in which both ends of the hollow thin tube are exposed to the outside from the root of the tail. 3. The animal model for animal experiment technique training according to claim 1 or 2, wherein the hollow animal model is formed by two soft synthetic resin films adhered only at the mouth portion.